[3] Novasic, NOVASiC Savoie Technol, F-7375 Le Bourget Du Lac, France
来源:
PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 3, NO 4
|
2006年
/
3卷
/
04期
关键词:
D O I:
10.1002/pssc.200564761
中图分类号:
TQ174 [陶瓷工业];
TB3 [工程材料学];
学科分类号:
0805 ;
080502 ;
摘要:
We established a cleaning procedure to obtain atomically flat (000 (1) over bar) surfaces from pressurized melt grown ZnO using ex-situ and in-situ processing. The ex-situ chemical cleaning consisted in removing the surface fluid layer and contaminants from the surface. The physical in-situ procedure used sputtering-annealing cycles to clean and reconstruct the surface. 3 key parameters were in-situ investigated: the annealing time, the annealing temperature and the sputtering energy. Investigations were carried out by means of Low Energy Electron Diffraction (LEED), Auger Electron Spectroscopy (AES), X-ray Photo-emission Spectroscopy (XPS), Time of Flight of Secondary Ion Mass Spectrometry (ToF-SIMS), Atomic Force Microscopy and Spectroscopy (AFM and AFS) and Scanning Tunnelling Microscopy (STM).